Colorado · Fremont County
Past Producer

Tallahassee Creek District

Fremont County, Colorado, United States
UraniumVanadium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryUranium
SecondaryVanadium
Commodity typeM
Deposit
Deposit sizeS
Orebody formTABULAR, PODS
Ore controlDeposition Controlled By Ground Water Flow Conditions And Carbonaceous Material With Associated Pyrite. Flow Was Impeded By The Fault On The Southern End Of The Echo Park Graben.
Materials
Ore mineralsCoffinite, Uraninite
GangueHematite, Limonite
Geology
Host rockSandstone,Arkose,Conglomerate,Tuff · Tallahassee Creek Conglomerate;Echo Park Formation
Associated rockRhyolite · Wall Mountain Tuff Was Probable Principal Uranium Source
StructureThirty Nine Mile Volcanic Field, Currant Creek Basin, Echo Park Graben, Paleovalleys
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
AlterationOxidation; Alteration Of Feldspar To Clay
Economic & production
Development statusPast Producer
First production1952
Last production1969
Discovery year1951
Identification
Deposit ID10107981
MRDS IDD009336
Alternate namesMary L Mine, Joan, Hansen Deposit, Picnic Tree Mine, Colorado Lease 519, Dickson-Snooper Mine
RegionNA
Data scoreB
Coordinates38.54695, -105.54447
References
NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 143-153.WOBUS, R.A., EPIS, R.C. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.EPIS, R.C., WOBUS, R.A. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500.BABCOCK, J.W., 1980, TALLAHASSEE CREEK URANIUM DEPOSITS, IN SILVER CLIFF VOLCANIC CENTER AND TALLAHASSEE CREEK URANIUM DEPOSITS: DENVER REGIONAL EXPLORATION GEOLOGISTS' SOCIETY GUIDEBOOK, P. 15-31.DICKINSON, K.A., 1981, GEOLOGIC CONTROLS OF URANIUM MINERALIZATION IN THE TALLAHASSEE CREEK URANIUM DISTRICT, FREMONT COUNTY, COLORADO: THE MOUNTAIN GEOLOGIST, V. 18, NO. 4, P. 88-94.DICKINSON, K.A. AND HILLS, F.A., 1982, OLIGOCENE VOLCANIC ROCKS: POSSIBLE SOURCE OF URANIUM IN EPIGENETIC DEPOSITS IN PARTS OF CHAFFEE, PARK, AND FREMONT COUNTIES, COLORADO: USGS OPEN-FILE REPORT 82-403, 32 P.MACPHERSON, B.A., 1959, GEOLOGY AND URANIUM DEPOSITS OF THE TALLAHASSEE CREEK DISTRICT, FREMONT COUNTY, COLORADO: USAEC RME-1083, OPEN-FILE REPORT, 41 P.NELSON-MOORE AND OTHERS, 1978; BABCOCK, 1980